What is the soil temperature in ZIP code 37658 today?

About 54°F on average in the top 4 inches (0–10 cm), low 50°F and high 56°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 8.9 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 37658?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 5 and 55°F from Apr 13.

ZIP 37658 · Elizabethton, TN · Nov 11, 2026

Soil temperature for ZIP code 37658

54°Faverage today, 0–4 in deep (modelled)
low 50°F · high 56°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 8.9 km from the ZIP centre point

On a week ago

6° cooler

60°F on Nov 4

5-day mean

53°F

what the verdicts use

Held 55°F last spring

Apr 13

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedToo cold
TomatoesToo cold
Peas and lettuceWarm enough

From the 5-day mean of the modelled 0–4 in layer.

Soil temperature, 0–4 in: last 7 days and next 7

°F, modelled. Dots and line: daily average (dashed = forecast); bars: low to high; green band: 50–55°F.

View as table

Day	Average	Low	High
Nov 4	59.6°F	58.2°F	60.6°F	analysis
Nov 5	61.9°F	60.8°F	63.1°F	analysis
Nov 6	61.5°F	60.2°F	62.7°F	analysis
Nov 7	56.0°F	54.8°F	58.8°F	analysis
Nov 8	50.7°F	47.6°F	52.8°F	analysis
Nov 9	51.0°F	48.1°F	53.4°F	analysis
Nov 10	52.2°F	48.9°F	55.2°F	analysis
Today	53.6°F	50.4°F	56.3°F	analysis
Nov 12	52.4°F	49.6°F	54.8°F	forecast
Nov 13	43.7°F	41.6°F	46.9°F	forecast
Nov 14	39.2°F	38.5°F	39.9°F	forecast
Nov 15	39.0°F	38.0°F	40.8°F	forecast
Nov 16	40.4°F	37.3°F	43.8°F	forecast
Nov 17	42.0°F	38.8°F	45.1°F	forecast

Source: NOAA NCEP GFS 0.25°, 0–10 cm soil temperature, run Nov 11, 12:00 UTC (7 am Eastern).

Spring 2026 threshold dates

From the 5-day mean held for 10 days or more.

Soil	What it means	Held from (spring 2026)
40°F	Peas and lettuce	Feb 15
50°F	Pre-emergent window opens	Mar 5
55°F	Crabgrass can germinate	Apr 13
60°F	Tomatoes	May 19
65°F	Warm-season grass seed	Jun 8

Johnson City, TN, 19 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

Nearby ZIP codes

Today's modelled average.

37687 50°F · 37643 50°F · 37682 54°F · 37692 54°F · 37601 54°F · 37640 50°F · 37694 51°F · 28622 50°F

More: crabgrass timing in Tennessee · every Tennessee city · how accurate the model is.

Questions

What is the soil temperature in ZIP code 37658 today?: About 54°F on average in the top 4 inches (0–10 cm), low 50°F and high 56°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 8.9 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 37658?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 5 and 55°F from Apr 13.

Data: Global Forecast System (GFS) 0.25°, soil temperature 0–10 cm (TSOIL) (NOAA National Centers for Environmental Prediction (NCEP)); 2025 Gazetteer ZIP Code Tabulation Areas (ZCTA) and 2024 cartographic boundary state outlines (U.S. Census Bureau).